Carpet sweeper



Jan. 18, 1927. 1,614,683

I. J. OWEN CARPET SWEEPER Filed March a, 1921 I E INVENTOR.

1m J Owen A TTORNEYS.

Patented Jan. 18, 1927.

UNITED STATES PATENT OFFICE.

IRA J. OWEN, OF GRAND RAPIDS, MICHIGAN, ASSIGNOR, BY MESNE ASSIGNMENTS,

TO BISSELL CARPET SWEEPER COMPANY, OF GRAND RAPIDS, MICHIGAN, A COR-PORATION OF MICHIGAN.

CARPET SWEEPER.

Application filed. March 8, 1921.

This invention relates to improvements in carpet sweepers. It relatesmore particularly to improvements in the shell or case of carpetsweepers.

The object of the invention is to provide a very economical, efiicientand light case for carpet sweepers.

I accomplish the object of my invention by the devices and meansdescribed in the following specification. The invention is clearlydefined and pointed out in the claim.

A structure which is a preferred embodiment of my invention is clearlyillustrated in the accompanying drawing, forming a part of thisspecification, in which:

Fig. I is a plan view of the case for a carpet sweeper embodying thefeatures of my invention.

Fig. II is an enlarged detail cross section of the same, taken on line22 of Fig. I.

Fig. III is a detail cross section taken on line 38 of Fig. II.

Fig. IV is a detail view of the blank material from which the sides andtop of the shell are formed.

Fig. V is an enlarged detail view through the angular part of the covershowing the method of forming the bend in the fibre board material.

In the drawing similar numerals of reference refer to similar partsthroughout the several views and the sectional views are taken lookingin the direction of the little arrows at the ends of the section lines.

Considering the numbered parts of the drawing, the shell of fibre boardis made up of a flat top portion 1, inclined front and rear portions 2and 3, and vertical front and rear side portions 4 and 5.

The ends 6 have their upper corners cut off obliquely and are conformedto the shell portion as appears in Fig. II.

Guard bars 7 are at the front and rear of the case and are gained at 8to receive the end pieces 6. The inner sides of the guard bars 7 arerabbeted at 9 to receive the front and rear edges of the fibre boardshell and finish and guard the same. These rabbets are preferablydove-tail in form to engage and retain the said edges which are alsoglued or otherwise cemented thereto. The structure would be effective ifthe rabbeting were omitted but this enhances the strength very much.

Serial No. 450,581.

The fibre board shell is provided with a tough lining 10,see Fig. V, andwith a finishing layer 11 which is preferably made of tough, high gradematerial, a good rag paper being effective although for cheap work thefinishing sheet may be of any material that will take a good finish.

To fold the fibre board and finish the same effectively I provide awedge-shaped knife of wide angle, about that reaches across the sheet,the edge of which is slightly dubbed. This forces the severed edges intothe sheet and molds and rounds the same. It folds down the edge of thefinishing material, breaks and crushes some of the fibres of the fibreboard near the surface, and puts pressure on the others which causes thefold to be made to the angle indicated without materially weakening thefibre board. In practice a set of knives is used.

The edges of the finishing material being forced into and conformed tothe severed edges of the board give the shell a neat and finishedappearcnce and, because the finishing sheet is folded in in this way thesame remains very securely in position.

After the case is thus made a coat of varnish, paint or enamel, as thecase may be, may be applied, which effectively seals the edge of thefinishing sheet at the open crease, as indicated. In cheap andespecially toy goods such final finish is usually omitted. I

The front and rear edges of the case could be otherwise finished but Ishow what I consider the most practical and eflicient.

Having thus described my invention, what I'claim as new and desire tosecure by Letters Patent, is:

In a case or shell for carpet sweepers, the combination of suitable endswith their upper corners cut to sloping angular form,

IRA J. OWEN.

